How to make:
STIR marmalade with gin in base of shaker so as to dissolve marmalade. ADD other ingredients, SHAKE with ice and fine strain into chilled glass.
Orange zest twist
Harry wrote of his own drink, "By its bitter-sweet taste this cocktail is especially suited to be a luncheon apertif."
Adapted from a recipe in the 1930 Savoy Cocktail Book by Harry Craddock (the original recipe serves six people).